Electrolytic solution for zinc-plating.



' coating of metallic zinc,

- the current practice,

" ness of zinc to be deposited per square foot subject of the King of Itziiy,

OEL FJSTINO BIANGO, OF NEW YORK, NrY.

naacrnonyrro sonu'rron' FOR zinc-marine.

Specification of Letters Patent.

Patented Doc. 1. 1908.

Application flied July is, 1 907. Serial no. seam.

To all whom it may concern."

Be it known that I, CELEsrINo BIANCO, a residing at New York city, borough of anhattan, county and State of New York, have invented certain new and useful Improvements in Electrolytic Solutions for Zinc-Platin of which the following is a clear, full, an exact description.

-This invention relates solution or bath, which is particularly adapt ed for plating metal articles of whatever shape, kind, or description, with a strata or for the purpose of disintegrating oxi-.

to an electrolytic protecting them against ation.

The rocess of coating with zinc is remarkably useful for those metals that are more susceptible to atmospheric influences, i. e., iron, cast-iron, steel, and its alloys, and isalready extensively used. I have found that the results obtainable with the use of my improved electrolyte are better than those to be hadin the ordinary Way, as the deposit is smoother, not porous, of metallic appearance, and of a thickness regulable to suit the work; furthermore, the zinc deposited is very pure. A

To plate a metallic substance, such as hereinbefore mentioned, I employ the usual method of suspending the article to be plated which becomes the cathode, in my improved electrol te. I also suspend a sheet or plate of meta zinc in the said electrol te, the said zinc becoming the anode. I 1; en pass an electric current through said anode, cathode and electrolyte, Wherebfy a stratum of zinc is deposited upon the sur ace of the cathode in the usual manner. The intensity. of the electric current will be regulated by the rules of and depends upon the kind of work to be done, and upon the thickof surface.

My improved electrolyte is com osed of the following ingredients in the ollowing proportlons Zinc......- 50 to 150 parts Iron 2 15 Aluminum 0. 5 10 Sodium 0. 5 10 Sulfuric acid 80 280 Acetic acid .6 8 886.5 527 Water 1020.00 1000.00-

Said parts are conveniently compounded, following the usual practice.

instead of using the single bodies Zn, Fe, Al, Na, their oxids could be used in the combination, as the combined oxygen would react with the hydrogen of the acids to form water, while the composition of the electrolyte would practically remain thesame.

Having now described my invention, what I claim and desire to secure by Letters Patent is:

" i 1. An electrolyte for the electrodeposition of zinc, containing. compounds of zinc and iron and an organic-acid salt of an alkali metal. p

2. An electrolyte for the electrodeposition of zinc, containlng compounds of zinc and iron and an organic-acid salt of sodium.

- 3. An electrolyte for the electrodeposition of zinc, containing compounds of zinc, iron, aluminum and sodium,

4. An electrolyte for the electrodeposition of zinc, containing sulfates of zinc and iron, and an acetate of an alkali metal.

5. An electrolyte for the electrodeposition of zinc, containin sulfates of zinc and iron,

and acetate of so ium.

6. An'electrolyte for the electrodeposition of zinc, containing sulfates of zinc, lron and aluminum, and acetate of sodium.

7. An electrolyte for the electrode osition of zinc, containing zinc, iron and so ium, in

the following proportions: zinc, 50 to 150 iron, 2 to 15; sodium, 0.5 to 10.

v -8. An electrolyte for the electrodeposition of zinc, containing zinc, iron, alununum and sodium, in the following proportions: zinc, 50 to 150; iron, 2 to 15; aluminum, 0.5 to 10 sodium, 0.5 to 10. v

9. .An electrolyte for-the electrodeposition of zinc, containing zinc, iron, aluminum, sodium, and sulfuric and acetic acids, 1n

.thefollowing proportions: zinc, v50 to 150;

Iron, 2 to 15; aluminum, 0.5 to 10 sodium, 055 to '10; sulfuric acid, to 280; acetlc acid, 0.5' to 8.

Signed at New day of-July, 1907.

EDWARD A. JARVIS, LILLIAN Hanms.

York city, Y., this 15th 

